Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
van cac » van hac, dan cac, van ca
van bac » van ban, van bao, van hac
van cau » van dau, van hau, van chat
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty xang xa hoi. hieu ((((van cac) OR (van bac))) or (van cau)) duc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang xa hoi. hieu ((((van cac) OR (van bac))) OR (van cau)) duc va hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty xang xa hoi. hieu ((((van cac) OR (van bac))) or (van cau)) duc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ty xang xa hoi. hieu ((((van cac) OR (van bac))) or (van cau)) duc va hanh vai cua tre*.